Saenz filled one of three vacancies after a trio of Top 10 fugitives was caught earlier this year. The other two spots will be filled this week.

Investigators said Saenz shot and killed two rival gang members in July 1998 to retaliate for one of his associates getting beat up. Less than two weeks later, he is accused of kidnapping, raping and killing his girlfriend, Sigreta Hernandez, because authorities believe she was going to tell police about the double slaying.

The pair share a daughter.

Saenz also is believed to have killed Oscar Torres at his home in Whittier because he failed to repay $600,000 in drug money after police seized the cash during a traffic stop.

Authorities said they have videotape from a surveillance camera at Torres’ house that shows Saenz killing Torres and wounding another person.

“He has demonstrated a brazen willingness to commit murder and whatever additional violent crime necessary to continue his criminal behavior,” said Keith Bolcar, acting assistant director in charge of the FBI’s Los Angeles office. “He has shown that he respects no laws, in this country or in others and will likely kill again if not captured.”

The FBI is offering a reward of up to $100,000 for Saenz’s capture.

Saenz is believed to be in Mexico as an enforcer and hit man for a Mexican drug cartel, Bolcar said. Authorities also said Saenz has indicated he would kill law enforcement officers if he faced arrest.

In July, another Los Angeles-area gang member who was among the FBI’s most wanted was caught in a Mexican village. Emigdio Preciado is accused of shooting at two Los Angeles County sheriff’s deputies, badly injuring one, in September 2000.

Bolcar said a $150,000 reward has been paid to a person who tipped authorities to Preciado’s whereabouts.